Al, Your points are well taken, But a few of the K3 owners that have pro-audio instrumentation have reported that the K3 audio response is more like 'white noise' (a flat response), as opposed to other receivers which have a 'pink noise' audio spectrum. That says that the K3 more faithfully reproduces any noise on the band, but that noise faithfully reproduced can be more irritating than receivers that have a 'pink noise' audio spectrum response.
I believe that we are hearing a variety of responses, and unfortunately, it is difficult to interpret and de-cipher the real source of each person's perception, so we are offering several suggestions, but it is like 'spitting into the wind' because we are not clear what the target really is. 73, Don W3FPR Al Lorona wrote: > I have been frustrated by the lack of measurements that we can hold on to as > we discuss the noisy K3 receiver that many folks are reporting. > > Help me out here: are we talking about the *amount* of noise, or the > *character* of the noise? I don't even think we've established the answer to > this. > > If it's the amount of noise that folks are hearing, wouldn't you just turn > the gain down to match your Other receiver? No two receivers have the same > amount of gain, and I think this point has been lost on some of us. > > If it's the character of the noise, and if you find it objectionable, and if > no settings of gain, filtering or noise reduction change it, I'd say it's > time to go back to the Other receiver, and I'm not being facetious about this. > > But in lieu of measured data, let's ask the folks with noisy K3 receivers a > few empirical questions: > > 1. Set up your K3 and your favorite Other receiver to receive the same band > noise. Set them up like you usually do: AF gain, RF gain, etc. Note the noise > level of the Other receiver... don't look at S-meters, voltmeters, etc., just > memorize the noise. > > Now switch to the K3 and go into the CONFIG menu. > > a. Is there any setting of AGC THR that gives you the same noise as Other? > > If so, use it. > > If not, proceed to step b. > > b. Is there any setting of AGC SLP that gives you the same noise as Other? > > If so, use it. > > If not, I don't know what to tell you. > > Actually, there might be a possible Step c., and that would be to adjust the > RF gain on the K3 to match Other. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
